Oil burner



y 21, 1929- L. NJSNOW 1,714,325

OILBURNER.

Filed Oct. 6, 1927 2 Sheets-Sheet 1 I MIR! May 21,1929. N SNOW 1,714,325

OIL BURNER Filed 001:. 1927 2 Sheets-Sheet Pam! May 21, 1929.

UNITED STATES PATENT OFFICE.

YLE 1v. snow, or QUINCY, ILLINOIS, ASSIGNOB TO H. m. SHEER COMPANY, or QUINCY, ILLINOIS, A CORPORATION or ILLINOIS.

OIL BURNER.

Application filed October 6, 1927. Serial No. 224,486.

This invention relates to an improvement in oil burners.

The invention relates to oil burners of the air-blast type, in which a curved air pipe extends over the oil cup of the burner and delivers air from the sides thereof to this oil cup, discharging the air downwardly about the vapors delivered from the oil cup. The air pipe has the opposite ends thereof communicating with air passages upward through the bowl of the oil burner, receiving the air therefrom and discharging it through a central outlet branch or opening located immediately above the oil cup. A flame deflector may be seated upon the oil cup for the purpose of aiding the -vaporization of the oil and also preventing the air from assing directly into contact with the oil for facilitating the starting of the burner.

The invention also has in mind improving the structure of the flame deflector by providing a plurality of prongs which extend down from a circular flange or collar into the oil in the cup, thus aiding a vaporiza tion of the oil by reason of the heat carried downward from the to of the flame deflector by the conduction o the prongs, insuring a quick saving of time required'to heat the oil cup to a point where it would vaporize the oil. The collar of the flame deflector covers the upper edge of the oil cup preventing the accumulation of soot thereon.

In the accompanying drawings Fig. 1 is a sectional view through an 011 burner embodying the invention;

Fig. 2 is a top plan view of the same Fig. 3 is a dlsassembled perspective new of the burner and its parts; and

Fig. 4 is a bottom perspective view of the flame deflector.

The numeral 1 indicates the bowl of the burner, which is provided with a peripheral flange 2, serving to support the burner on a ring or other suitable supporting member WhlCll connects it with a stove or other furnace structure with which it is used] Extending upwardly through the bowl 1 are two diametrically opposite air-passages 3 posite ends thereof turned downward to form induction branches 6 and 7. The airpassages 3 and 4 are preferably flush with the top of the burner bowl, and the induction branches 6 and 7 are seated upon the upper ends of these air-passages, the branch 7 bemg flush with the upper edge of the airpassage 4. A tubular extension 8' is formed on the lower end of the induction branch 6 but of a reduced external diameter, forming a shoulder 9 which is seated upon'the upper end of the air-passage 3 while the extension 8 PIOJGCtS into this air-passage and has a snug fit therein.

Lugs 10 extend downward from the extension 8 and form guides therefor within the a1r-passage 3. e air-passage 3 as well as the extension 8 being round or cylindrical, as shown in Fig. 2, the air-pipe 5 is ermltted .to be turned into the dotted ine posltion of Fig. 2, the bearing surface between the cylindrical extension 8 and the airpassage 3 serving as a pivot for the air-pipe and permitting of its being turned.

An outlet branch or opening 11 is provided at the center of the air-pipe 5 for allowing the air toflow downwardly over the center of the bowl. Located in the bottom center of the bowl is an oil cup 12 which is supplied with oil or a liquid hydrocarbon through a main supply pipe 13, leading into the bottom of the bowl, as shown in Fig. 1. This cup 12 rises above the bottom of the bowl and is formed integral therewith. A circul'ar peripheral trough 14 is also formed about the oil cup 12 in order to receive any oil that may overflow from the cup. A flame deflector designated generally by the numeral 15 is adapted to be seated upon the oil cup. This flame deflector is provided with a hood 16 and a collar 17 connected together by means of flared legs 18. Prongs 19 extend downward from the collar 17 and while the collar is seated upon the upper edge of the oil cup 12, these prongs are adapted to extend into the oil cup to a point near the bottom thereof for guiding the proper seating of the flame deflector as well as to conduct the heat downward from the hood 16 into the oil cup for aiding the vaporization of the oil. An eyelet20 is formed on the air-pipe to one side and remove the to of the hood 16 for receiving a hook In the operation of the burner, the draft formed by the burning hydrocarbon causes a movement of the air as indicated by the arrows in Fig. 1. The heated and vaporized oil passes upward from the oil cup to a point where the combustion takes place as the air is drawn downward through the opening 11 about the periphery of the flame deflector 15. p

The prongs 19 which extend down into the oil in the oil cup cause a quick va orization of the oil by the conducting 0 the heat downward from the hood 16, insuring a quick starting of the burner and moding the unnecessary length of time it would otherwise take to heat the oil cu and the bowl to a point where they woul vaporlze the oil. Furthermore, soot or dirt has a natural tendency to form on the flame deflector and top edge of the oil 'cup, which is made integral with the burner bowl. The flame deflector being made removable permits of the cleaning of this soot as well as a quick starting of the burner. The collar 17 serves to shield the top edge of the oil cup so that the removal of the flame deflector also removes all of the soot, leaving the top edge of the oil cup entirely clean. During the operation, the soot also has a natural tendency to accumulate on the supports for the hood and by making them flared outward apart from each other, as shown in Fig. 1, it tends to prevent this accumulation of soot and requires a much greater time for it to close over the opening between the hood and the collar, preventing the escape of the vaporized oil. In fact,'this closing up of the flame deflector by the soot is almost rendered impossible by reason of the structure of the flame deflector.

The structure of the airipe also provides for an easy removal 0 the flame deflector to permit of the proper cleaning of the flame deflector as well as of the oil cup. The bearing formed between the induction branch 6 and the air-passage 3 permits of swinging the air-pipe out of its posltion over the flamedeflector to gain access to the oil cup and to remove the flame deflector without'the necessity of removing the entire air-pipe. In fact, it is possible to swin the ame deflector, placing another in its place, and then return the oil-pipe to 'its roper and operative fposition without stopping the operation o the burner, or at least without waiting for the entire structure to cool. In this way, an oil burner is provided of a very greatly; improved structure, which facilitates a quic starting of the burner, and permits of an easy cleaning thereof, which 1s not obtained in the usual oil burner where it is necessary to entirely remove the air-pipe be fore access may be gained to the oil cup.

1. An'oil burner including a bowl, an oil cup connected therewith, air-passages formed in the bowl, and a pivotally mounted air-pipe cooperating and associated with the air-passages and adapted to swing into proper position over the oil cup.

2. An oil burner including a bowl and having an' oil cup -therein, air passages extending into the bowl, and an air pipe having an end thereof pivotally received in at least one of the air-passages forming a bearing for said air-pipe and extending into operative position over the oil cup and air-passages.

3. An oil burner including a burner bowl having an oil cup therein, air-passages extending through the bowl, a removable flame deflector seated upon the oil cup, and an air plpe having the opposite endsthereof form- 1ng induction branches and having a discharge outlet intermediate said branches, said outlet being normally located in operative position above the ame deflector and oil cup, I at least one of said induction.

branches being flush with one of the airpassages, and earin the other induction ranch and air passage means connected withfor forming a pivotal connection between the air-pipe and said air passage to allow a swinging oftheair-pipe away from its operatlve. posltion above the flame deflector and oil cup.

4. An oil burner including a burner bowl having an oil cup therein, 'a removable flame deflector seated upon the oil cup',"air-passages extending upward through the burner bowl and being approximately flush with the upper surface thereof, an air pi e havmg the o posite ends thereof turne downward to orm induction branches, and provided with an intermediate outlet normally positioned above the flame deflector and oil cup, one of said induction branches being approximately flush with and adapted to cooperate with one of the air-passages, the other induction branch havin a reduced cylindrical extension formed t ereon providmg a shoulder seated upon the upper edge of the other air-passage, said extension projectingjnto' the an passage and forming a pivotal bearing for the air pipe, to permit of a swinging of it away from its position over the flame deflector and oil cup, and guide lugs extending downward from the cylindrical extension.

5. A flame deflector for an oil cup said deflector having a hood, a collar adapted to be seated upon the edge of the oil cup, and legs connecting the collar with the hood.

6. A flame deflector for an oil cup said deflector having a hood, a collar adapted to be seated upon the edge of the oil cup, legs connecting the collar with the hood, and prongs extending downward from the collar adapted to fit into the oil cup.

7. A flame deflector for an oil cup said deflector having a hood, a collar adapted to be seated upon the rim of the oil cup, flared legs con'nectin the collar andhood together and holding them in spaced relation, and a plurality of prongs extending downward from the collar adapted to fit into the oil cup.

8. An oil burner including a bowl having an oil cup therein, air passages associated with said oil cup, and an air pipe havingthe ends thereof cooperating with the air pas-- sages and having an intermediate openin above the oil cup, at least one of the endso said air pipe being pivotally mounted for swinging movement.

9. An oil burner including a bowl having an oil cup therein, air passages associated with'said oil cup, a removable flame deflector seated upon the oil cup, an air pipe having the ends thereof cooperating with the air passages and having an intermediate opening above the oil on and bearing means for pivotally supporting said air pipe at an end thereof. I

10. An oil burner including an oil cup, air passages associated with said oil cup, and arranged on different sides thereof, and an air chamber having openings cooperating with the air passages and oilcup, said air chamber being pivotally mounted for swinging movement.

In testimony whereof I afiix my signature.

LYLE N. snow. 

